Light shielding materials, head mounted displays

Abstract

Provided is a light-shield member (30) having a reduced contact pressure. A light-shield member (30) for reducing the incidence of external light on the eye of a user wearing a head mounted display (1) comprises a mount portion (31) which is mounted to a housing (10a) of the head mounted display (1), and a light-shield wall (32) extending rearward from the mount portion (31). The light-shield wall (32) includes, at least in a part thereof, a bellows that contacts a periphery of an eye of a user wearing the head mounted display (1), and that deforms by expanding and contracting in accordance with the contact pressure.

Description

[Technical field]

[0001] The present invention relates to a light blocking member and a head mounted display. [Background technology]

[0002] As disclosed in Patent Document 1, for example, head mounted displays are known that include a light blocking member (sometimes called a light shield) that reduces external light incident on the user's eyes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 136657 Summary of the Invention [Problem to be solved by the invention]

[0004] It is preferable that the light-shielding member has no gap between it and the user's face, and that the contact pressure against the face does not cause the user to feel uncomfortable. The shapes and sizes of human faces vary depending on age, sex, race, etc., and a light-shielding member suitable for faces of various shapes and sizes is desired.

[0005] The present invention has been made in view of the above problems, and one of its objects is to provide a light blocking member and a head mounted display with reduced contact pressure. [Means for solving the problem]

[0006] One example of a light-shielding member proposed in the present disclosure is a light-shielding member that reduces external light entering the eyes of a user wearing a head-mounted display, and has an attachment portion that is attached to a housing of the head-mounted display, and a light-shielding wall that extends rearward from the attachment portion, and the light-shielding wall contacts the area around the eyes of a user wearing the head-mounted display and includes at least a portion of a bellows that expands and contracts in response to contact pressure.

[0007] One example of a head mounted display proposed in the present disclosure is a head mounted display including a housing, a wearing band extending rearward from the housing and worn on the user's head, and a light-shielding member that reduces external light entering the user's eyes, wherein the light-shielding member has an attachment portion attached to the housing and a light-shielding wall extending rearward from the attachment portion, and the light-shielding wall contacts the area around the eyes of a user wearing the head mounted display and includes at least a portion of a bellows that expands and contracts in response to contact pressure. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view showing an overall configuration of a head mounted display according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view of the light blocking member of the present embodiment, as viewed obliquely from the front. [Diagram 3] FIG. 2 is a front view of the light blocking member of the present embodiment as viewed from the front. [Figure 4] FIG. 2 is a perspective view of the light blocking member of the present embodiment, seen obliquely from the rear. [Diagram 5] FIG. 4 is a rear view of the light blocking member of the present embodiment as viewed from the rear. [Figure 6] FIG. 2 is a top view of the light blocking member of the present embodiment as viewed from above. [Figure 7] FIG. 2 is a bottom view of the light blocking member of the present embodiment as viewed from below. [Figure 8] FIG. 2 is a perspective view of the light blocking member of the present embodiment, as viewed obliquely from below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention (hereinafter, referred to as the present embodiment) will be described with reference to the drawings. In the following description, the directions indicated by X1 and X2 in the drawings are the right and left, respectively, the directions indicated by Y1 and Y2 in the drawings are the front and rear, respectively, and the directions indicated by Z1 and Z2 in the drawings are the up and down, respectively. Each of these directions indicates a direction as seen by a user wearing a head mounted display 1. In addition, in the following description, the head mounted display 1 is referred to as an HMD (Head Mounted Display) 1.

[0010] [Overview of the overall configuration of HMD1] 1 is a perspective view showing the overall configuration of an HMD according to this embodiment. As shown in FIG. 1, the HMD 1 has a device main body 10 and a wearing band 20.

[0011] The wearing band 20 extends rearward from the device body 10. When the HMD 1 is in use, the wearing band 20 surrounds the user's head. The wearing band 20 is annular, and it is preferable that the user's head be placed inside the wearing band 20.

[0012] The device body 10 has at least a display 11, a right lens 12R and a left lens 12L (see FIG. 6), and a housing 10a that contains the display 11, the right lens 12R, and the left lens 12L and constitutes the external appearance of the device body 10. In one example of the HMD 1, the display 11 displays a three-dimensional image. However, this is not limited to this, and the image displayed by the display 11 may be a two-dimensional image. The display 11 may be, for example, a liquid crystal display device or an organic electroluminescence display device, but the type is not particularly limited. When the HMD 1 is used, the device body 10 covers the front of the user's eyes. The housing 10a may be, for example, made of resin.

[0013] In this embodiment, an example in which the housing 10a has a built-in display will be described, but the present invention is not limited to this. For example, a mobile terminal may be housed in the device main body 10, and image light from the display of the housed mobile terminal may be guided to the user's eye. In this case, for example, a smartphone may be used as the mobile terminal.

[0014] The wearing band 20 may be configured to support the device body 10 so as to be relatively movable in the front-rear direction with respect to the device body 10. With such a configuration, the distance between the user's eyes and the right lens 12R and the left lens 12L can be adjusted. In addition, the distance of the light blocking member 30 described below from the user's face can be adjusted accordingly, and the contact pressure on the user's face can be adjusted. In addition, the wearing band 20 may have a structure that allows the length to be adjusted according to the size of the user's head. Note that the wearing band 20 is not limited to the configuration shown in FIG. 1 as long as it is worn on the user's head and supports the device body 10.

[0015] [Light blocking material] Next, the light shielding member 30 of this embodiment will be described in detail with reference to Figs. 2 to 8. Fig. 2 is a perspective view of the light shielding member of this embodiment as viewed obliquely from the front. Fig. 3 is a front view of the light shielding member of this embodiment as viewed from the front. Fig. 4 is a perspective view of the light shielding member of this embodiment as viewed obliquely from the rear. Fig. 5 is a rear view of the light shielding member of this embodiment as viewed from the rear. Fig. 6 is a top view of the light shielding member of this embodiment as viewed from above. Fig. 6 shows a schematic diagram of a part of the internal structure of the device main body 10. Fig. 7 is a bottom view of the light shielding member of this embodiment as viewed from below. Fig. 8 is a perspective view of the light shielding member of this embodiment as viewed obliquely from below.

[0016] The light blocking member 30 is a member provided to block or reduce external light incident on the eyes of a user wearing the HMD 1. The light blocking member 30 is preferably made of an elastic resin. However, the light blocking member 30 is not limited to being made of resin, and may be made of, for example, a fibrous material (such as a sponge).

[0017] The light blocking member 30 includes an attachment portion 31 that is attached to the housing 10a of the device body 10. The attachment portion 31 may be annular and surround the right lens 12R and the left lens 12L housed in the housing 10a when viewed from the rear. The attachment portion 31 may be configured to be detachable from the housing 10a. For example, a plurality of locking protrusions may be formed on the front portion of the attachment portion 31, and the light blocking member 30 may be attached to the housing 10a by fitting the locking protrusions into a plurality of grooves formed in the housing 10a. However, this is not limited to the above, and the attachment portion 31 may be formed to be fixed to the housing 10a by two-color molding or insert molding.

[0018] The light blocking member 30 also includes a light blocking wall 32 extending rearward from the mounting portion 31. The light blocking wall 32 extends rearward from the mounting portion 31 so as to come into contact with the periphery of the eyes of the user wearing the HMD 1. By including the light blocking wall 32, the light blocking member 30 exhibits the function of blocking or reducing the light from outside entering the eyes of the user wearing the HMD 1. It is preferable that the mounting portion 31 and the light blocking wall 32 are integral with each other.

[0019] The light-shielding wall 32 includes an upper portion 321, a right portion 322R, and a left portion 322L. The upper portion 321 is a portion that comes into contact with the upper side of the eye of a user wearing the HMD 1. The right portion 322R is a portion that comes into contact with the right side of the right eye of a user wearing the HMD 1. The left portion 322L is a portion that comes into contact with the left side of the left eye of a user wearing the HMD 1.

[0020] Further, the light shielding wall 32 includes a right connector 325R that connects the upper portion 321 to the right portion 322R, and a left connector 325L that connects the upper portion 321 to the left portion 322L.

[0021] 6 and 7, the portions corresponding to upper portion 321, right portion 322R, left portion 322L, right connecting portion 325R, and left connecting portion 325L are indicated by dashed circles, respectively. However, light-shielding wall 32 is made of a single member, and the boundaries of each portion are not strictly defined.

[0022] The light-shielding wall 32 has a bellows that comes into contact with the periphery of the eyes of a user wearing the HMD 1 and expands and contracts in response to contact pressure. In this embodiment, an example is shown in which the bellows is provided around the entire periphery of the light-shielding wall 32. That is, an example is shown in which the bellows is provided on each of the upper portion 321, the right portion 322R, the left portion 322L, the right connecting portion 325R, and the left connecting portion 325L.

[0023] Here, the bellows is formed by alternating mountain stripes and valley stripes. In this embodiment, the bellows is formed by alternating four mountain stripes M1 to M4 and three valley stripes G1 to G3. In order to avoid cluttering the drawings, the reference numerals of the mountain stripes and valley stripes are shown only in FIG. 5. The number of mountain stripes and valley stripes is not limited to this, and may be more or less than the illustrated example. By increasing the number of mountain stripes and valley stripes, the flexibility of the light-shielding wall 32 can be improved, while by decreasing the number of mountain stripes and valley stripes, the configuration of the light-shielding wall 32 can be simplified.

[0024] In this embodiment, as shown in FIG. 5 and the like, the notches CR and CL are provided in the innermost mountain ridge portion M1 of the bellows of the right portion 322R and the left portion 322L. The notches CR and CL are provided in front of the ears of the user wearing the HMD1, and have a predetermined width in the vertical direction. Since the notches CR and CL are provided in this manner, even if the user wears the HMD1 while wearing glasses, the shape of the light-shielding wall 32 is deformed due to the temples of the glasses interfering with the right portion 322R and the left portion 322L of the light-shielding wall 32, and a gap is prevented from being generated between the light-shielding wall 32 and the face of the user. Furthermore, since the temples of the glasses are prevented from interfering with the right portion 322R and the left portion 322L of the light-shielding wall 32, the user can wear the HMD1 without feeling uncomfortable even when wearing glasses.

[0025] The notches CR and CL may be provided at least in a portion including the innermost mountain stripe or valley stripe of the right and left parts 322R and 322L. For example, the notches CR and CL may be provided across the innermost mountain stripe M1 and the valley stripe G1 adjacent to the mountain stripe M1. Also, for example, when the valley stripe is located at the innermost side of the bellows of the right and left parts 322R and 322L, the notches CR and CL may be provided in the innermost valley stripe.

[0026] 6, in this embodiment, the width W3 of the bellows of the right connecting portion 325R and the left connecting portion 325L in the top view is set to be wider than the width W1 of the bellows of the upper portion 321 and the width W2 of the bellows of the right portion 322R and the left portion 322L. Due to this configuration, when the user wears the HMD 1, the user's head first comes into contact with the right connecting portion 325R and the left connecting portion 325L. As a result, the right connecting portion 325R and the left connecting portion 325L are compressed and deformed.

[0027] As the right connecting portion 325R and the left connecting portion 325L are compressed and deformed, the right portion 322R moves leftward, and the left portion 322L moves rightward. That is, the right portion 322R and the left portion 322L move in the directions indicated by the arrows in FIG. 6 and FIG. 7. As a result, the user's head is sandwiched between the right portion 322R and the left portion 322L. Specifically, the right portion 322R contacts the right side of the user's right eye with a predetermined contact pressure, and the left portion 322L contacts the left side of the user's left eye with a predetermined contact pressure. In this embodiment, the right portion 322R moves leftward as the light-shielding wall 32 bends at the boundary (inflection point) between the right portion 322R and the right connecting portion 325R. Similarly, the left portion 322L moves rightward as a result of the light-shielding wall 32 bending at the boundary (inflection point) between the left portion 322L and the left connecting portion 325L.

[0028] As described above, the right connecting portion 325R connects the upper portion 321 and the right portion 322R such that the right portion 322R approaches the user's face as the contact pressure on the right connecting portion 325R increases. Similarly, the left connecting portion 325L connects the upper portion 321 and the left portion 322L such that the left portion 322L approaches the user's face as the contact pressure on the left connecting portion 325L increases.

[0029] In addition, in this embodiment, the right part 322R and the right connecting part 325R extend diagonally backward to the right in a top view. In addition, the left part 322L and the left connecting part 325L extend diagonally backward to the left in a top view. That is, the light-shielding wall 32 is substantially V-shaped in a top view. Because of this shape, the face of the HMD1 user is more likely to come into contact with the light-shielding wall 32 compared to a configuration in which the right part 322R, the right connecting part 325R, the left part 322L, and the left connecting part 325L extend straight backward. Therefore, it is possible to suppress the occurrence of a gap between the user's face and the light-shielding wall 32.

[0030] By adopting the above-described configuration, even when a user with a small head wears the HMD 1, the right section 322R and the left section 322L move close to the user's face, thereby preventing external light from entering through gaps between the right section 322R and the left section 322L and the user's face. As a result, external light is prevented from entering the user's eyes.

[0031] In addition, when a user with a large head wears the HMD 1, the light-shielding wall 32 includes a bellows that expands and contracts in response to contact pressure, so that the contact pressure applied to the user's face is reduced. As a result, discomfort caused by contact with the light-shielding wall 32 can be reduced.

[0032] Furthermore, the light blocking member 30 includes, at its lower part, a nose accommodation section 35 that accommodates the nose of a user wearing the HMD 1. The nose accommodation section 35 has a shape that protrudes forward, and is a recessed section that is formed at the lower part of the housing 10a when the light blocking member 30 is attached to the housing 10a. (not shown) in order to fit into the nose accommodating portion 35. In this manner, since the light blocking member 30 includes the nose accommodating portion 35, it is possible to suppress discomfort caused by the nose of the user wearing the HMD 1 interfering with the light blocking wall 32.

[0033] The nose accommodating section 35 includes a front section 351F, a right section 351R, and a left section 351L, and is open downward and backward. The nose of a user wearing the HMD 1 is disposed in a space R surrounded by the front section 351F, the right section 351R, and the left section 351L.

[0034] Further, the nose accommodation portion 35 includes a first right light shielding portion 352R provided at the rear end of the right portion 351R so as to cover the rear of the space R, and a first left light shielding portion 352L provided at the left portion 351L so as to cover the rear of the space R. The first right light shielding portion 352R and the first left light shielding portion 352L may be sheet-shaped. In this embodiment, as shown in FIG. 4 etc., the first right light shielding portion 352R and the first left light shielding portion 352L are spaced apart in the left-right direction, and a slit extending in the up-down direction is formed between them.

[0035] The nose of a user wearing the HMD1 is accommodated in the space R through a slit formed between the first right light shielding portion 352R and the first left light shielding portion 352L. In this manner, the nose accommodating portion 35 includes the first right light shielding portion 352R and the first left light shielding portion 352L, so that it is possible to prevent external light from entering through a gap between the right portion 351R and the left portion 351L of the nose accommodating portion 35 and the user's nose. As a result, it is possible to prevent external light from entering the user's eyes.

[0036] Furthermore, the nose accommodation section 35 includes a second right light shielding section 355R disposed in front of the first right light shielding section 352R, and a second left light shielding section 355L disposed in front of the first left light shielding section 352L. The second right light shielding section 355R and the second left light shielding section 355L may be sheet-shaped. The second right light shielding section 355R and the second left light shielding section 355L are disposed so as to divide the space R into two spaces in the front-rear direction. In addition, the second right light shielding section 355R and the second left light shielding section 355L are spaced apart in the left-right direction, and a slit extending in the up-down direction is formed between them.

[0037] When a user with a high nose (having a nose that is long in the front-to-rear direction) wears the HMD 1, the user's nose is accommodated in the space R via a slit formed between the first right light shielding portion 352R and the first left light shielding portion 352L and a slit formed between the second right light shielding portion 355R and the second left light shielding portion 355L. With this configuration, it is possible to further prevent external light from entering through the gap between the right portion 351R and the left portion 351L of the nose accommodation portion 35 and the user's nose.

[0038] The HMD 1 according to the present embodiment described above can prevent external light from entering the user's eyes when used by a user with a small head, thereby improving the sense of immersion. On the other hand, when used by a user with a large head, it can prevent the user from feeling uncomfortable due to the contact pressure of the light blocking member 30.

[0039] The light-shielding member 30 shown in this embodiment is merely an example, and it is sufficient that the light-shielding wall 32 at least partially includes a bellows that expands and contracts in response to contact pressure.

Claims

1. A light blocking member that reduces external light incident on the eyes of a user wearing a head mounted display, A mounting portion that is attached to a housing of the head mounted display; a light blocking wall extending rearward from the mounting portion; having the light-shielding wall includes at least a portion of a bellows that comes into contact with an area around an eye of a user wearing the head-mounted display and expands or contracts in response to contact pressure; the light-shielding wall includes a right portion that comes into contact with the right side of a right eye of a user wearing the head mounted display, and a left portion that comes into contact with the left side of a left eye of a user wearing the head mounted display, The bellows is provided at least in the right portion and the left portion, The bellows is formed by alternating mountain stripes and valley stripes, A notch is provided in a portion including an innermost mountain ridge portion or a valley ridge portion of the right and left bellows portions. Light blocking material.

2. the light blocking wall includes an upper portion that comes into contact with an upper side of an eye of a user wearing the head mounted display, The bellows is provided at least in the upper portion. The light-shielding member according to claim 1 .

3. A light blocking member that reduces external light incident on the eyes of a user wearing a head mounted display, A mounting portion that is attached to a housing of the head mounted display; a light blocking wall extending rearward from the mounting portion; having the light-shielding wall includes at least a portion of a bellows that comes into contact with an area around an eye of a user wearing the head-mounted display and expands or contracts in response to contact pressure; the light-shielding wall includes an upper portion that contacts the upper side of the eye of a user wearing the head mounted display, a right portion that contacts the right side of the right eye of the user wearing the head mounted display, a left portion that contacts the left side of the left eye of the user wearing the head mounted display, a right connecting portion that connects the upper portion and the right portion, and a left connecting portion that connects the upper portion and the left portion, the right connecting portion connects the upper portion and the right portion such that the right portion moves leftward as a contact pressure on the right connecting portion increases, the left connecting portion connects the upper portion and the left portion such that the left portion moves rightward as a contact pressure on the left connecting portion increases, The bellows is provided across the right portion, the right connecting portion, the upper portion, the left connecting portion, and the left portion. Light blocking material.

4. When viewed from above, the width of the bellows of the right connecting portion and the left connecting portion is at least wider than the width of the bellows of the upper portion, The light-shielding member according to claim 3 .

5. When viewed from above, the right portion and the right connecting portion extend diagonally rearward to the right, When viewed from above, the left portion and the left connecting portion extend diagonally rearward to the left. The light-shielding member according to claim 3 or 4.

6. A light blocking member that reduces external light incident on the eyes of a user wearing a head mounted display, a mounting portion that is attached to a housing of the head mounted display; a light blocking wall extending rearward from the mounting portion; having the light-shielding wall includes at least a portion of a bellows that comes into contact with an area around an eye of a user wearing the head-mounted display and expands or contracts in response to contact pressure; the light blocking member includes a nose accommodating portion at a lower portion thereof for accommodating the nose of a user wearing the head mounted display, The nose accommodation portion has an opening at the rear and includes at least a first light blocking portion that reduces external light entering an eye of a user through the opening, The nose accommodation portion is disposed forward of the first light-shielding portion and further includes a second light-shielding portion that reduces external light entering the user's eye through the opening. Light blocking material.

7. The mounting portion is detachable from the housing. The light-shielding member according to any one of claims 1 to 6.

8. A head-mounted display including a housing, a wearing band extending rearward from the housing and worn on a user's head, and a light-shielding member for reducing external light entering the user's eyes, The light blocking member is a mounting portion attached to the housing; a light blocking wall extending rearward from the mounting portion; having the light-shielding wall includes at least a portion of a bellows that comes into contact with an area around an eye of a user wearing the head-mounted display and expands or contracts in response to contact pressure; the light-shielding wall includes an upper portion that contacts the upper side of the eye of a user wearing the head mounted display, a right portion that contacts the right side of the right eye of the user wearing the head mounted display, a left portion that contacts the left side of the left eye of the user wearing the head mounted display, a right connecting portion that connects the upper portion and the right portion, and a left connecting portion that connects the upper portion and the left portion, the right connecting portion connects the upper portion and the right portion such that the right portion moves leftward as a contact pressure on the right connecting portion increases, the left connecting portion connects the upper portion and the left portion such that the left portion moves rightward as a contact pressure on the left connecting portion increases, The bellows is provided across the right portion, the right connecting portion, the upper portion, the left connecting portion, and the left portion. Head-mounted display.

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